7828925

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1$

素因数の和:162

約数の個数: 36

約数和(自身を含む): 11232540

約数和(自身を除く): 3403615

約数列:

[1, 5, 13, 17, 25, 65, 85, 109, 169, 221, 325, 425, 545, 845, 1105, 1417, 1853, 2725, 2873, 4225, 5525, 7085, 9265, 14365, 18421, 24089, 35425, 46325, 71825, 92105, 120445, 313157, 460525, 602225, 1565785, 7828925]

約数ペア:

[(1, 7828925), (5, 1565785), (13, 602225), (17, 460525), (25, 313157), (65, 120445), (85, 92105), (109, 71825), (169, 46325), (221, 35425), (325, 24089), (425, 18421), (545, 14365), (845, 9265), (1105, 7085), (1417, 5525), (1853, 4225), (2725, 2873)]